Inner sole



(N0 Model.) J. O. BLUM.

' INNER SOLE. I

No. 439,377. Patented 001;. 28, 1890.

UNITED STATES PATENT OFFICEQ JOSEPH CHARLES BLUM, OF TOWANDA, PENNSYLVANIA.

INNER SOLE.

SPECIFICATION forming part of Letters Patent No. 439,377, dated October 28, 1890.

Application filed April 10, 1890.

To all whom it may concern:

Be it known that I, JOSEPH CHARLES BLUM, a citizen of the United States, residing at T0- wanda, in the county of Bradford and State of Pennsylvania, have invented certain new and useful Improvements in Inner Soles for Shoes; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked't-hereon, which form a part of this specification.

My invention relates to inner soles for shoes, and its objects are, first, to maintain the pliability thereof; second, to increase thereby the durability; third, to adapt the shoe better to the foot; fourth, to ease the walking motion, and, fifth, to attain these ends with structural simplicity and economy. I accomplish these aims by the means shown in the accompanying drawings, in which- Figure 1 represents a plan view of a sole constructed according to my invention. Fig. 2 is a side view thereof, and Fig. 3 is a transverse section.

The same designations indicate corresponding parts in the views.

I have discovered that it is conducive to the longevity of a sole that it shall yield to the motion of the foot. In order to permit such yielding motion the sole should not be solid, buthave certain incisions made therein. I therefore construct an inner sole, according to my invention, of four distinct articles, the layers of which are united by cement, sewing, or equivalent agency.

In preparing the blank for sole A, I inscribe a longitudinal median line thereon from the heel to the toe. Ithen inscribe aperpendicu- Serial No. 347,333. (No model.)

lar line thereto about one-fourth the length of the longitudinal line from the toe. With these two lines as axes I inscribe two transverse and six longitudinal lines parallel thereto equidistan tly, as indicated on the drawings. Then connecting the two angles so formed, I cut out from the sole the figures compre hended within said lines, and thus producetwo equilateral diamond-shaped figures B comprehended between common tran sverse planes and equidistantly disposed with reference to the longitudinal median line. After producing a blank in this manner I cut dies conforming thereto, whereby such soles may be prepared in large quantities. To the bottom of this sole I unite a layer of water-proof fabric O, which goes next to the inner surface of the outer sole. To the upper side of the sole I secure several layers of cotton-batting E, which are superposed with a thin layer of felt or leather D, that comes in contact with the foot.

Having thus fully described my improvement-s,-what I claim is" As an improved article of manufacture, an inner sole consisting of a bottom layer of water-proof fabric 0, a leather-board or pasteboard sole A, having two diamond-shaped excisions Bt-herefrom between common vertical planes and disposed equidistantly from a longitudinal median line, several intermediate layers of cotton-batting E, and a top layer of felt or leather D, constructed and united as shown and described,forthe purpose specified.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH CHARLES BLUM.

Witnesses:

SYLVANUS WAY. M. ADELE WAY. 

